Waste grab preventer



April 2, 1940. w. M. Glass wAs'rE sima PREVENTER 5 Sheets-Sheet 1 FiledFeb. 3 1959 April 2, w. M. Giens WASTE GRAB PREVENTER s sheets-sheet 2Fiied Feb. 5. l19u39 10 sa c sa 2227 ala M1 figg.

w. M. GlBBs wAsTn GRAB ranvnnrn Filed Feb. s. 1939 April 2,

3. Sheets-Sheet 3 Patented Apr. 1940 g 2,195,814` l WASTE GRAB PREVENTERwalter M. Gibbs, chicago, .111. Applicationliebruary 3, .1939, ,SerialNo.` k254,394

3 Claims.

My invention contemplates and provides novel,

or. chunks of lubricating packing upwardly toI the bearing brass (orother journal-engaging box-supporting shoe) for lodgment between thebrass and "journaL-such lodgment being permitted by momentaryseparations@ of -brass and journal resulting from the jolts and jars oftrafc. When so lodged, the grabbed packing ma.- terial, acting very muchlike a squeegee, prevents the very necessary continuous film of oil fromexisting between the-brass and journal. The results, of Va waste grab,unless it is'speedilyl discovered, and corrected, are a hot box and,sometimes a destroyed journal-possibly awreck.

Waste grabs occur mostl frequently in cold weather when the oil whichsaturates the packing is quite sti". However, waste grabs occur at alltimes of the year. The -grabbed packing material usually comes from theupper surface ofthe packing contained in the journal box, but

it does, in some cases, come from below the upper' surface of thepacking. v The term bearing brass as hereinafter use in thisspecification, should be regarded as broad enough toinclude anybox-supporting journal engaging shoe of whatsoever material or materialsmade.

AIn its most simple and preferred form,: the

Waste grab-preventer of the present inventionv consists of a metal sheet(preferably but not nec essarily of brass) which is conformed to consti#tute -a partial sleeve which snugly embraces, and by its inherentlspringiness vclings to, the major portion of the cylindrical surface ofa journal (at rest or in rotation) `which. is not in the ernbracegof thebearing brass. The longitudinal edges of the partial sleeve arepreferably provided with' flanges adapted to engagev the bearing brassto insure that suchvpartial sleeve cannot have either of itslongitudinal edges become caught between the journal and the bearingbrass. That portion of the partial sleeve which lies beneath the uppersurface of the packing is provided with a plurality of apertures throughwhich the packing may contact the cylindrical surface of the journal andeffect its lubrication. The

portions of` the partial sleeve which lie aboveA (01,..sos-s9)imperforate for some distance. above the packing both fore and aft ofthe journal; 1 f

In a modified embodiment olf-,my yinvention the longitudinal edges ofthe waste grabpre- Venter are conformed to interengage with portions ofthebearing brass to lpreventthe waste grab preventer from movinglongitudinally of the journal'into engagement withy either the coleA lar(end flange) or fillet'fshoulder) of thejournal. Such modifiedembodiment of my invention isalso characterized by a plurality of oilcollecting grooves which are formed onthe innery surface of that portionof the waste grab pre-l venter which is apertured ,t0r allow contact ofthe packing with the journal.

These and other objects, features and ladvantages of my invention willappear fromgthe `fol-. lowing detailed description, wherein reference ismadel to thel accompanying three sheets, of

drawings, in which Fig; 1 is a vertical section, through a conventionaljournal box assembly, which is taken Ain a plane parallel with thevjournal axisthe journal being shown in elevation and the waste grabpreventer partially in elevation and partially in section;

UNITED STATES PATENT'FFICE l. 30 sectional View, taken in the samevplane as Fig.2, but on larger scale,

packing and waste grab preventer;

Fig, 4 is an isolated perspective viewl of ythe waste grab preventerofthe preceding figures; j y Fig. 5 is a View generally corresponding toFig. 1 butillustrating a modified form of the waste grab preventer; Y

Fig. '6 is an isolated perspective view of the waste grab preventer ofFigs. 5, 7, and 8;

Fig. 7 is a horizontal sectional view which may be regarded astaken inthe several horizontal planes of the line 'll-fi of Fig. 5, a portion ofthe brass bearing being shown in top plan and the illustrating portionsof the journal, bearing brass,

. remainder lbeing. `broken away to reveall parts therebeneath; andA HFig. 8 is a Viewv corresponding generally to that of Fig. 3, butillustrating the modified form of Waste grab preventer in itsappropriate' relationship to the elements with which it cooperates.

Similar characters of reference refer to similar parts throughout theseveral views.l n In the x,accompanying drawings reference nu- -meral I0denotes what is or, may be a conventional box for the journal II of anaxle I2. The journal box IIJ, as illustrated, comprises the usualopening I3 normally closed by cover I4, and the usual dust guard Well I5in which is disposed a suitable dust guard represented as a whole byreference numeral I6. At I'I is depicted the usual bearing brass which,in the present instance, is provided with babbit lining I8. The usual orany suitable bearing brass wedge is indicated at I9. The journal II,being of conventional design, comprises the collar or end flange 20, andthe shoulder or llet 2l.

Disposed in the lower portion or well of the journal box I Il is asuitable quantity or" oil soaked packing 22, which usually consists ofWool waste or cotton waste having coiled springs interspersed therewith.The packing depicted in the accompanying drawings may be presumed tohave been placed in accordance with approved present-day railwaypractice, and may be regarded as consisting of three portions, vnamelythe back roll {l2-a, the principal packing body 22-b and the front plug22-c. The upper surfaces of those packing portions (back plug 22-a andprincipal paclnng body 22-19) which lie under and partially around thecylindrical surface of journal II are at a level somewhat below thehorizontal plane which includes the journal axis. In fact, thehorizontal plane of the upper surfaces of such portions of the packingis usually approximately one inch below the horizontal plane whichincludes the axis of the conventional journal found in general use byAmerican railroads.

The several elements thus far mentioned in this detailed description ofthe accompanying drawings, are old. They have been shown and describedbecause collectively they constitute a preferred environment for thenow-to-be-described waste grab preventer which is the salient feature cfthe present invention.

The waste grab preventer, in its more simple form of Figs. l to 4inclusive, consists of a sheet 23 of metal, preferably but notnecessarily brass, which is conformed to constitute a partial sleevewhich will snugly embrace the greater portion of so much of thecylindrical surface of journal II as is not embraced by the concavity ofbearing brass I'I (see Fig. 2). Such partial sleeve possesses inherentresiliency in the sense that when it is removed from the journal itslongitudinal (upper) edges assume positions wherein they are closertogether than are the closest positions which they are permitted toassume when such partial sleeve is embracing the journal. Consequently,the waste grab preventer, by virtue of such inherent resiliency, acts tohold itself snugly upon the portion of the journal which it embraces,and maintains that position, despite relative rotation of the journal ineither direction.

The longitudinal edges of the waste grab preventer are provided withoutwardly turned flanges 24. Such waste grab preventerr also hasimperforate lateral portions 25-25 and a perforate intermediate portion26. The apertures in the perforate portion 26 are preferably of ratherlarge size, and most of them desirably are square or of diamond shape,as indicated at 28. The apertures 21, at the ends of the waste grabpreventer, preferably are triangular to complete a regular pattern ofspaced-apart apertures occupying a laterally curved rectangular iield.`I prefer that the several apertures in each longitudinal row bestaggered with respect to the apertures of the adjacent row or rows, asillustrated.

In that embodiment of my invention which is shown in Figs. 1 to 4inclusive all of the inner surface of the waste grab preventer issmooth.

When the waste grab preventer is in cooperating relationship with thejournal II, the packing 22 and the bearing brass I'l, as illustrated inFigs. 1, 2 and 3, all of the apertures 21 and 28 lie below the uppersurfaces of those portions of packing 22 upon which the journal dependsfor direct lubrication, and such portions of the packing can only engagethe cylindrical surface of the journal through such apertures. Flanges24 stand ready to engage the lower lateral edges of the bearing brass I'I if the journal II, when rotating in and with respect to the wastegrab preventer, should tend to carry either of the longitudinal edges ofthe waste grab preventer between the journal and the bearing brass. Iprefer that the flanges 24 shall be out of Contact with bearing brass I1when the waste grab preventer is initially installed-thus compensatingin advance for expected wear of journal and bearing brass.

If any threads or chunks of the packing in contact with the cylindricalsurface of the journal should adhere to the journal, when the journalstarts from rest or at any other time when it is rotating, such threadsor chunks of packing material can move only a very slight distance withthe journal before they are scraped therefrom by the trailing margins ormargin of the particular aperture 2l' or 28 at and through which suchthreads or chunks of packing material are contacting the journal. Thuswaste grabs are thwarted by a very simple and effective means which doesnot prevent the cylindrical surface of the journal from beingeffectively lubricated by the oil saturated packing. An additional butby no means inconsequential advantage afforded by the waste grabpreventer of the present invention is attributable to the fact that whenthe journal comes to rest a substantial quantity of oil tends tocollect, as a film bridging the narrow .spaces between the smoothcylindrical surface of the journal and the opposed smooth inner fsurfaces of the waste grab preventersuch oil iilm affording the journalits initial lubrication when its rotation recommences.

I prefer to install the waste grab preventer as follows: With thejournal box I0 jacked up and with the bearing brass I1 removed, thewaste grab preventer, with its longitudinal edges extending downwardly,is slipped over the journal II, to take a position between its collar 20and its shoulder 2|. is turned through to its operating positiondepicted in the drawings.

The waste grab preventer of Figs. 5 to 8 inclusive differs from thewaste grab preventer of the preceding gures only in that (a) it is proivided with means arranged to interlock with the bearing brass to insurethat the waste grab preventer shall not engage either the collar 20 orthe shoulder 2| of the journal II, and (b) it is provided with oilgrooves in the inner surface of its perforate portion 26 to permit anincreased quantity of oil to collect between the cylindrical surface ofthe journal II and the opposed inner surfaces of the Waste grabpreventer when the journal is at rest.

The portions of the waste grab preventer of Figs. 5 to 8 inclusive whichinterlock withthe bearing brass I'I are the triangular lugs 29 which areturned upwardly from the flanges 24, and the integral extensions 30 ofthe waste grab preventer Then the waste grab preventer j secure byLetters Patent of the United States is:

` which lie adjacent to but rise above the flanges 24. Triangular lugs29 are adapted to engage the contiguous surfaces of the conventionalstop lugs 3l of the bearing brass I`l,to keep the right hand end (Fig.7) of the waste grab preventer from slipping into scraping engagementwith the journal shoulder 2|. The extensions 30, to which I havepreviously alluded, are adapted to engage the right hand ends (Eg. 7 ofthe stop lug extensions 32, to keep the left handvend of the waste grabthe Waste grab preventer and the cylindrical surface of the journal'whenthe journal is at rest, are indicated at 33. preferably intersects .andcommunicates with one or more of the other grooves, as is most clearlyillustrated in Fig. 6. f

Under most practical conditions I find that the more simple form ofwaste grab preventer `depicted in Figs. 1 to 4 both inclusive, willserve is in motion. Moreover, I find that the more sim.

p-le form of waste grab preventer will, when used with the ordinaryjournal, develop a suiiicient oil lm between itself and the journal whenthe journal is at rest, notwithstanding that it lacks the oilvcollecting grooves 33 of Fig. 6.

In certain situations, however, the more elaborate form of waste grabpreventer shown in Fig. 6 will justify the additional manufacturingexpense which its addedl features entail.

Having thus illustrated and described my invention in connection withtwo practical embodiments thereof, what I claim as new and desire toEach of these grooves 33 1. In combination a journal, a journal box, ajournal-engaging box-supporting shoe and journal lubricating packingcarried in the journal box; a waste grab preventer in the form of apartial sleeve of inherently springy metal embracing `the cylindricalsurface of the journal, said waste grab preventer extending more than180 around the cylindrical surface of the journal and having itslongitudinal` edges lying adjacent the shoe, apertures in said wastegrab preventer through which the packing may contact the cylindricalsurface of the journal, said waste grab preventer lying in the packingand said apertures lying belowr the upper surfaces of the packing, saidapertures being arranged in a plurality of longitudinal rows with someof said apertures staggered with respect to others.

2. A waste grab preventer consisting of a sheet of inherently springymetal having the shape of a partial sleeve adapted to embrace and extendmore than 180n around the cylindrical surface of a packing lubricatedshoe-supportingjournal, a portion of said partial sleeve which isspaced-from and lies intermediate its longitudinal ledges being providedwith a multiplicty of apertures through which packing material mayengage the cylindrical surface of a journal which the waste grabpreventer embraces.

3. A waste grab preventer consisting of a metal sheet having the shapeof a partial sleeve adapted to embrace and extend more than 180 aroundthe cylindrical surface of a packing lubricated shoesupporting journal,a portion of said partial-sleeve intermediate its longitudinal edgesbeing provided with a multiplicity of apertures through which packingmaterial may engage the cylindrical surface of a journal which the wastegrab preventer embraces, the longitudinal edges of said waste v grabpreventer being normally resiliently urged to WALTER M. GIBBS.

